.banner{
    width: 100%;
    height: 270px;
    background: url(../img/latestactivity/活动banner2.jpg) no-repeat center;
    margin-bottom: 100px;
}
.banner .banner-mask{
    display: none;
    width: 100%;
    height: 270px;
    background: url(../img/latestactivity/活动banner.jpg) no-repeat center; 
}
.banner:hover .banner-mask{
    display: block;
}
.main{
    height: 765px;
    width: 100%;
    background-color: #ffffff;
    margin-top: 100px;
}
.main-c{
    width: 1200px;
    height: 108px;
    margin: 0 auto;
}
.main .main-c .main-a{
    width: 104px;
    height: 25px;
    font-size: 26px;
    color: #444444;
   margin: 0 auto;
}
.main .main-c .main-b{
    width: 120px;
    height: 13px;
    font-size: 16px;
    color: #c1c1c1;
    line-height: 13px;
    margin: 0 auto;
    margin-top: 10px;
}
.main .main-nav{
    /* height: 600px; */
    width: 100%;
}
.main .main-nav .main-item{
    width: 100%;
    height: 199px;
    border-bottom: 1px solid #DBDBDB;
}
.main .main-nav .main-item:hover{
    background-color: #4D4D4D;
}
.main .main-nav .main-item .main-c .main-item-a{
    float: left;
    margin-left: 248px;
}
.main .main-nav .main-item .main-c .main-item-a .main-item-a-yueri{
    font-size: 60px;
    color: #929292;
    margin-top: 42px;
}
.main .main-nav .main-item:hover .main-c .main-item-a .main-item-a-yueri{
    color: #ffffff;
}
.main .main-nav .main-item:hover .main-c .main-item-a .main-item-a-year{
    color: #ffffff;
}
.main .main-nav .main-item .main-c .main-item-a .main-item-a-year{
    font-size: 16px;
    color: #929292;
    margin-left: 123px;
    margin-top: 20px;
}
.main .main-nav .main-item .main-c .main-item-b{
    float: left;
    margin-left: 57px;
    margin-top: 57px;
}
.main .main-nav .main-item .main-c .main-item-b .main-item-b-title{
   font-size: 16px;
   color: #000000;
}
.main .main-nav .main-item:hover .main-c .main-item-b .main-item-b-title{
    color: #ffffff;
}

.main .main-nav .main-item .main-c .main-item-b .main-item-b-desc{
    margin-top: 31px;
    font-size: 12px;
    color: #4d4d4d;
    line-height: 22px;
}
.main .main-nav .main-item:hover .main-c .main-item-b .main-item-b-desc{
    color: #ffffff;
}
.main .main-nav .main-item .main-c .arr{
    float: left;
    margin-top: 100px;
    margin-left: 69px;
}
.main .main-nav .main-item .main-c .arr .span-arr{
    display: block;
width: 14px;
height: 26px;
background: url(../img/latestactivity/向右.png) no-repeat center;
}
.main .main-nav .main-item .main-c:hover{
    padding-right: 150px;
}
.footer{
    background-color: #F7F5F5;
}




